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Two green DDR4 UDIMM sticks, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 3200 CL22 2Rx8 UDIMM ASRock B450M memory upgrade

SKU CH-X423-D7NT8

64 GB (2 × 32 GB) DDR4 3200 CL22 UDIMM kit for ASRock B450M motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64 GB kit expands desktop capacity for multitasking
  • 3200 MHz DDR4 speed matches board specification
  • CL22 latency supports stable operation at rated frequency
  • 2 V low voltage reduces power draw and heat
  • 2Rx8 dual-rank organisation optimises memory controller efficiency

NEMIX RAM 64GB DDR4 3200 Kit

This NEMIX RAM kit provides 64GB of DDR4 memory across two 32GB UDIMM modules. It is built for desktop PCs using ASRock B450M motherboards that support DDR4 3200 speeds. The modules run at 1.20V with CL22 latency.

288-pin unbuffered non-ECC upgrade

Each module uses a standard 288-pin DDR4 UDIMM form factor with 2Rx8 organisation. The kit is unbuffered and non-ECC, so it fits directly into consumer desktop DIMM slots without requiring registered or error-correcting memory support. No heat spreaders are included.

Suits ASRock B450M capacity upgrades

This kit suits builders maximising memory on a compatible ASRock B450M board with four slots or populating two slots fully. It is not for systems limited to 32GB total capacity or boards that only accept single-rank modules. Buyers needing ECC or registered memory should look elsewhere.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $370.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $5.80 per GB
Cheaper than about 67% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Gaming Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz Non-ECC Unbuffered UDIMM
Part numberMD25600-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (2 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Will the CL22 latency throttle performance during long rendering sessions?

The kit runs at CL22 timing as specified; sustained workloads will operate at that latency without additional throttling from the modules themselves.

How much heat do the modules produce when running continuously at 3200 MHz?

These UDIMMs operate at 1.2 V with no heat spreader, so they generate only modest heat typical of standard DDR4 at stock voltage.

Does my ASRock B450M board need a BIOS update before installing this 64 GB kit?

The kit is validated for ASRock B450M motherboards; most current BIOS revisions will recognise the 2Rx8 modules at 3200 MHz automatically.

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